const a : Number = new Number ('142857');
let n1 : string = a.toExponential ();
console.log (typeof n1);
console.log (n1);
let n2 : string = a.toFixed ();
console.log (typeof n2);
console.log (n2);
let n3 : string = a.toLocaleString ();
console.log (typeof n3);
console.log (n3);
let n4 : string = a.toPrecision ();
console.log (typeof n4);
console.log (n4);
let n5 : string = a.toString ();
console.log (typeof n5);
console.log (n5);
let n6 : number = a.valueOf ();
console.log (typeof n6);
console.log (n6);
let n7 : number = Number.MAX_SAFE_INTEGER;
console.log (typeof n7);
console.log (n7);
let n8 : number = Number.MAX_SAFE_INTEGER;
console.log (typeof n8);
console.log (n8);
let n9 : number = Number.EPSILON;
console.log (typeof n9);
console.log (n9);
let n10 : number = Number.MIN_VALUE;
console.log (typeof n10);
console.log (n10);
let n11 : number = Number.MIN_VALUE;
console.log (typeof n11);
console.log (n11);
let n12 : number = Number.NEGATIVE_INFINITY;
console.log (typeof n12);
console.log (n12);
let n13 : number = Number.NaN;
console.log (typeof n13);
console.log (n13);
let n14 : number = Number.POSITIVE_INFINITY;
console.log (typeof n14);
console.log (n14);
